Change to kilometers.
1. [tex]$\begin{tabular}{r}
$6 m \quad 83 c m$ \
$\quad 9 m \quad 58 c m$ \
\hline
\end{tabular}$[/tex]
2. [tex]$\begin{tabular}{r}
6 m 82 cm \
$\quad 7 m 39 cm$ \
\hline
\end{tabular}$[/tex]
3. [tex]$\begin{tabular}{r}
7 m 94 cm \
8 m 49 cm \
$\quad 2 m 65 cm$ \
\hline
\end{tabular}$[/tex]
4. [tex]$\begin{tabular}{r}
5 m 31 cm \
6 m 22 cm \
+3 m 69 cm \
\hline
\end{tabular}$[/tex]
5. [tex]$12 km 787 m+23 km 264 m=$ $\square$[/tex]
6. [tex]$2 k m 525 m+17 k m 90 m+5 k m 102 m=$ $\square$[/tex]
7. [tex]$18.46 m-12.88 m=$ $\square$[/tex]
8. [tex]$5.426 km-1.778 km=$ $\square$[/tex]

Add or subtract the given measurements.
Convert centimeters to meters by dividing by 100.
Convert meters to kilometers by dividing by 1000.
The final answers in kilometers are: 0.01641 , 0.01421 , 0.01908 , 0.01522 , 36.051 , 24.717 , 0.00558 , 3.648 ​ .

Explanation

Understanding the Problem We need to perform the additions and subtractions, and then convert the answers to kilometers. We will use the facts that 1 m = 100 cm and 1 km = 1000 m.

Solving problem 1

6 m + 83 c m + 9 m + 58 c m = 15 m + 141 c m = 15 m + 1.41 m = 16.41 m = 1000 16.41 ​ km = 0.01641 km

Solving problem 2

6 m + 82 c m + 7 m + 39 c m = 13 m + 121 c m = 13 m + 1.21 m = 14.21 m = 1000 14.21 ​ km = 0.01421 km

Solving problem 3

7 m + 94 c m + 8 m + 49 c m + 2 m + 65 c m = 17 m + 208 c m = 17 m + 2.08 m = 19.08 m = 1000 19.08 ​ km = 0.01908 km

Solving problem 4

5 m + 31 c m + 6 m + 22 c m + 3 m + 69 c m = 14 m + 122 c m = 14 m + 1.22 m = 15.22 m = 1000 15.22 ​ km = 0.01522 km

Solving problem 5

12 km + 787 m + 23 km + 264 m = 35 km + 1051 m = 35 km + 1.051 km = 36.051 km

Solving problem 6

2 km + 525 m + 17 km + 90 m + 5 km + 102 m = 24 km + 717 m = 24 km + 0.717 km = 24.717 km

Solving problem 7

18.46 m − 12.88 m = 5.58 m = 1000 5.58 ​ km = 0.00558 km

Solving problem 8

5.426 km − 1.778 km = 3.648 km

Final Answer Therefore, the answers in kilometers are:

0.01641 km

0.01421 km

0.01908 km

0.01522 km

36.051 km

24.717 km

0.00558 km

3.648 km


Examples
Converting measurements to kilometers is useful in many real-world scenarios, such as planning long trips, calculating distances in navigation systems, and understanding geographical data. For example, if you're planning a road trip, you might need to convert distances between cities from meters or centimeters to kilometers to estimate travel time and fuel consumption. Similarly, in sports, race distances are often measured in kilometers, helping athletes and spectators understand the scale of the event.

Answered by GinnyAnswer | 2025-07-08

We converted the given measurements to kilometers by first adding or subtracting the measurements in meters and centimeters, then converting the final results into kilometers. The final results for each problem are provided in the answer. This process follows standard metric conversions where 1 m = 100 cm and 1 km = 1000 m.
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Answered by Anonymous | 2025-08-12